Hugin is a panoramic imaging toolchain and easy-to-use GUI frontend,
based on the Panorama Tools library. It allows you to assemble a mosaic
of photographs into a complete immersive panorama, stitch any series
of overlapping pictures, correct for various lens characteristics,
work with high dynamic range images, automatically identify control
points for image matching, and much more.

Tutorials: http://hugin.sourceforge.net/tutorials/
